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PN: WOR 030630

WORLD PRODUCTS MARINE CYLINDER HEADS

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Availability: In stock

$524.95
Quick Overview
Merlin 345 bare Iron. Sold individually.Cast Iron and Aluminum / Bare and Complete Head Assemblies

Marine Cylinder Heads

Merlin 269cc Oval Port heads are excellent for upgrades on
7.4 Mercury big blocks up to 468 c.i.d.  When larger displacement engines
(502 to 572 cubic inch) require additional flow, Merlin Cast Iron and Aluminum
Rectangular Port cylinder heads
are the perfect choice.  World’s 305, 310cc, 345cc and 350cc intake
runners are
meticulously crafted to out-perform both factory and other aftermarket cylinder
heads. These heads respond to higher compression ratios, and are ideally suited
for high-performance boating.

TCM Complete Heads Include:

Severe Duty Stainless Intake Valves, Crane, Isky, or Comp. Cam Valve Springs,
Inconel Exhaust Valves, Crane or Manley Retainers, Crane Guide 3/8" Plates,
Crane or Manley Keepers, ARP Rocker Studs, PC Seals, Surface & Machine
for PC Seals, Install Bronze Guide K-Liners, Econo Flow Porting Job, Deburr & Internally
Paint

Recommended Installation Items:

Head Gaskets:  Fel-Pro #1017-1 or Equivalent ( Match
Bore Size )

Pushrods:  One-piece heat-treated pushrods

Spark Plugs:  Accepts 14mm .750” reach gasketed
5/8 hex. Heat range may vary.  Consult with TCM

Head Bolts:  8 Longer than stock required (WOR#
073010)
Complete Head Bolt Kit (ARP 235-3707 Kit)


* TCM Recommends gaskets pg.#

The complete line of this manufacturer is available. 

Please contact your TCM sales representative At 661•295•7000
for more information.

Technical Specifications:  Iron & Aluminum
Heads


Material:  High density Cast Iron or 355-T6 Aluminum
Alloy

Combustion Chambers:  119cc (Aluminum heads CNC Ported)

Intake Runners:  269cc, 310cc, 320cc, 345cc  Iron.  305cc
and 350cc Aluminum

Valves:  Manley Severe Duty Intake and Extreme Duty (Inconel)
Exhaust

Fuel Requirements:  Compatible with Unleaded Gasoline

Valve Springs:  Special Marine 1.550” O.D. Dual
Spring Setup

Valve Size: 2.300” Intake x 1.880” Exhaust Valves

Valve Stems:  11/32” Intake and Exhaust Valves

Valve Guides: Integral on Cast Iron Heads and Bronze Guides
on Aluminum Heads

Exhaust Flange: Stock Port Location. Includes Accessory Bolt
Holes

WORLD PRODUCTS MARINE CYLINDER HEADS

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Details
Merlin 345 bare Iron. Sold individually.Cast Iron and Aluminum / Bare and Complete Head Assemblies

Marine Cylinder Heads
Merlin 269cc Oval Port heads are excellent for upgrades on 7.4 Mercury big blocks up to 468 c.i.d.  When larger displacement engines (502 to 572 cubic inch) require additional flow, Merlin Cast Iron and Aluminum Rectangular Port cylinder heads are the perfect choice.  World’s 305, 310cc, 345cc and 350cc intake runners are meticulously crafted to out-perform both factory and other aftermarket cylinder heads. These heads respond to higher compression ratios, and are ideally suited for high-performance boating.

TCM Complete Heads Include:
Severe Duty Stainless Intake Valves, Crane, Isky, or Comp. Cam Valve Springs, Inconel Exhaust Valves, Crane or Manley Retainers, Crane Guide 3/8" Plates, Crane or Manley Keepers, ARP Rocker Studs, PC Seals, Surface & Machine for PC Seals, Install Bronze Guide K-Liners, Econo Flow Porting Job, Deburr & Internally Paint

Recommended Installation Items:
Head Gaskets:  Fel-Pro #1017-1 or Equivalent ( Match Bore Size )
Pushrods:  One-piece heat-treated pushrods
Spark Plugs:  Accepts 14mm .750” reach gasketed 5/8 hex. Heat range may vary.  Consult with TCM
Head Bolts:  8 Longer than stock required (WOR# 073010) Complete Head Bolt Kit (ARP 235-3707 Kit)

* TCM Recommends gaskets pg.#
The complete line of this manufacturer is available. 
Please contact your TCM sales representative At 661•295•7000 for more information.

Technical Specifications:  Iron & Aluminum Heads
Material:  High density Cast Iron or 355-T6 Aluminum Alloy
Combustion Chambers:  119cc (Aluminum heads CNC Ported)
Intake Runners:  269cc, 310cc, 320cc, 345cc  Iron.  305cc and 350cc Aluminum
Valves:  Manley Severe Duty Intake and Extreme Duty (Inconel) Exhaust
Fuel Requirements:  Compatible with Unleaded Gasoline
Valve Springs:  Special Marine 1.550” O.D. Dual Spring Setup
Valve Size: 2.300” Intake x 1.880” Exhaust Valves
Valve Stems:  11/32” Intake and Exhaust Valves
Valve Guides: Integral on Cast Iron Heads and Bronze Guides on Aluminum Heads
Exhaust Flange: Stock Port Location. Includes Accessory Bolt Holes

Additional Information
Model WOR 030630
Manufacturer WORLD PRODUCTS

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